I would at least swap the dining area for the sitting area. Your new views to the garden will be appreciated more often than only at mealtimes. I agree with Kemi but keep the layout open ie don't have the back of your L sofa to the kitchen. You might also fit your woodburner in the wee corner next to the bi-fold doors. I don't know if you can open up the wall between the kitchen and (your planned) sitting room ( the wall adj the hall).

Beautiful! SO much more light

Hi @Chris O. It is an ensuite :) it really is a space where our customer can relax and have her own little spa! I have attached the floor plan 3D render to give you an idea of dimensions.

Hi Richard, glad to hear that you love the mosaic tiles! They actually work with a wide range of bathroom styles, you can see some more projects we've used mosaic tiles for here: https://www.houzz.co.uk/discussions/best-bathroom-floor-pattern-dsvw-vd~5257957?n=4 Make sure to vote for your favourite!